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Essays in Economics of Innovations
Hrendash, Taras ; Gaule, Patrick (advisor) ; Ganguli, Ina (referee) ; de Rassenfosse, Gaetan (referee)
This thesis consists of three chapters. The first chapter proposes a novel multi-layer clustering algorithm aimed to identify technology clusters from the network of collaboration ties among innovators with geo-coded locations. Using this novel algorithm, I identify innovation clusters in the U.S. Patent Inventor Database by simultaneously exploring two dimensions: the spatial distribution of inventors and the patterns of interconnections among them. Based on the clusters identified, I show that a combination of proximity and interconnectedness of inventors within the cluster boundaries is related to higher quality of innovations than those produced outside the clusters. In the second chapter, I exploit the introduction of the USPTO's Prioritized Examination (Track One) Program to capture the impact of shortened pendency on the likelihood that a pending or granted patent will be commercialized via the transfer of property rights. I find that the Track One program significantly increased the probability of commercial reassignment of applications that were more likely to be prioritized. In the third chapter, joint with Christian Fons-Rosen and Patrick Gaulé, we investigate causes of the ageing of the U.S. scientific workforce. Using novel data on the population of U.S. chemistry faculty members...

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